- Nanodes
- Nanodes
medusae [Aršik 730] [Souvenir Sheet 730]
- Nausithous
- Nebulosa
- Strix nebulosa
[Aršik 853] [Souvenir Sheet 853]
- Neptis
- Neptis
rivularis [Aršik 563] [Souvenir Sheet 563]
- Netta
- Netta
rufina [Známka 566] [Stamp 566]
- Niger
- Hyoscyamus niger
[Známka 1919] [Stamp 1919]
- Nigra
- Cieonia nigra
[Známka 1592] [Stamp 1592]
- Ciconia nigra
[Známka 606] [Stamp 606]
- Nisus
- Accipiter nisus
[Kupon 775] [Coupon 775]
- Nitedula
- Dryomys nitedula
[Známka 111] [Stamp 111]
- Nivalis
- Galanthus nivalis
[Kupon 816] [Coupon 816]
- Nobilis
- Hepatica nobilis [Kupon 775] [Coupon 775]
- Noctua
- Athene noctua
[Známka 853] [Stamp 853]
- Nolanea
- Nolanea
verna [Známka 2909] [Stamp 2909]
- Nomascus
- Nomascus
gabriellae [Kupon 894] [Coupon 894]
- Non
- Non
Bellum Sed Pax [Známka 992] [Stamp 992]
- Nova
- Astronomia Nova
1609 [Známka 596] [Stamp 596]
- Nucifraga
- Nucifraga
caryocatactes [Známka 1479] [Stamp 1479]
- Nucifraga
caryocatactes [Známka 817] [Stamp 817]
- Nutans
- Carduus nutans
L. [Známka 1378] [Stamp 1378]
- Nyctea
- Nyctea
scandiaca [Známka 855] [Stamp 855]
- Nycticorax
- Nycticorax nycticorax
L. [Známka 1142] [Stamp 1142]
- Nymphaea
- Nymphaea
candida [Známka 2588] [Stamp 2588]
- Nymphaea alba [Známka 566] [Stamp 566]
- Nymphalis
- Nymphalis
jo L. [Známka 1221] [Stamp 1221]
- Nymphalis
antiopa L. [Známka 1222] [Stamp 1222]
[Známka 326] [Stamp 326]